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Nuclear Physics in Astrophysics - X

4–9 Sept 2022
CERN
Europe/Zurich timezone

Session

Friday - Session 1

9 Sept 2022, 09:00
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
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Conveners

Friday - Session 1

  • Daniel Bemmerer

Presentation materials

There are no materials yet.

  1. 141. The slow neutron capture process in AGB stars
    Diego Vescovi (Goethe University Frankfurt)
    09/09/2022, 09:00
    Invited

    Asymptotic giant branch (AGB) stars are responsible for the production of the main component, i.e. nuclei from Sr to Pb, of the solar s-process distribution. Despite tremendous advances in the theoretical modeling of these objects over the last few decades, many uncertainties remain. An example is represented by the still-unknown mechanism leading to the $^{13}$C neutron source. The...

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  2. 11. The importance of targetry in nuclear physics and astrophysics experiments
    Emilio Andrea Maugeri (Paul Scherrer Institute (CH))
    09/09/2022, 09:30
    Oral

    This contribution highlights the importance of targetry in nuclear physics and astrophysics experiments. Three different stages are described: 1) production, purification and characterization of starting materials, with a concise description of the opportunity offered by PSI in this respect; 2) target manufacture, with emphasis on the last developments obtained at PSI; 3) characterization of...

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  3. 122. Fusion of 12C + 24Mg at extreme sub-barrier energies
    Dr Alberto Stefanini (INFN - LNL)
    09/09/2022, 09:45
    Oral

    The study of heavy-ion fusion reactions of light systems is essential for the understanding of the astrophysical reaction networks responsible for the energy production and elemental synthesis in stellar environments. At far sub-barrier energies, fusion is influenced by the hindrance phenomenon [1]. Fusion of light heavy-ions is characterised by a positive Q-value and establishing the presence...

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  4. 89. Surrogate Reactions for Nuclear Astrophysics
    Andrew Ratkiewicz (Lawrence Livermore National Laboratory (LLNL))
    09/09/2022, 10:00
    Oral

    Neutron-induced reactions on unstable nuclei play an important in nuclear astrophysics and for applications of nuclear technology. However, due to the radioactive nature of the nuclei involved, these reactions are extremely difficult or impossible to directly measure. The importance of these reactions has motivated the development of several indirect methods for constraining their properties,...

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  5. 26. Measurement of alpha-induced reaction cross sections for studying the weak r-process nucleosynthesis
    Tibor Norbert Szegedi
    09/09/2022, 10:15
    Oral

    Neutron-rich isotopes between Sr and Ag are thought to be synthesized in the neutrino-driven ejecta of core-collapse supernova explosions via the weak r-process [1]. Recent nucleosynthesis simulations demonstrated that (α,xn) reactions play a crucial role in the formation of these isotopes [1-4]. The rates of the (α,n) reactions are provided by the Hauser-Feshbach model. The main uncertainty...

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